Wings of Redemption by N. Slater

We know what Dmitri is now, and we know what we have to become to stop him.
The problem is getting there alive.

My mates and I are running out of time. Every night, Mother Nature shows me Phoenix Sanctuary falling. Every day, we push deeper into hostile territory, building alliances with communities who’ve spent generations hiding from the very system we’re trying to destroy.
But Dmitri is hunting us, corrupting everything we left behind, and the only way to face him is to do something none of us has ever managed before.
Let go completely. No walls. No reserves. No holding back.
Six broken people found each other in the dark. Now we find out if love is enough to survive what’s coming.
Wings of Redemption is the final installment of the Academy of Rejects series.